From the speech:.
During the period when this eavesdropping was still secret, the President went out of his way to reassure the American people on more than one occasion that, of course, judicial permission is required for any government spying on American citizens and that, of course, these constitutional safeguards were still in place.
But surprisingly, the President's soothing statements turned out to be false. Moreover, as soon as this massive domestic spying program was uncovered by the press, the President not only confirmed that the story was true, but also declared that he has no intention of bringing these wholesale invasions of privacy to an end. (. . .)
Can it be true that any president really has such powers under our Constitution? If the answer is "yes" then under the theory by which these acts are committed, are there any acts that can on their face be prohibited? If the President has the inherent authority to eavesdrop, imprison citizens on his own declaration, kidnap and torture, then what can't he do?
The Dean of Yale Law School, Harold Koh, said after analyzing the Executive Branch's claims of these previously unrecognized powers: "If the President has commander-in-chief power to commit torture, he has the power to commit genocide, to sanction slavery, to promote apartheid, to license summary execution."